Home / 25,635.60-38,430.61-13,795.74

Finding the Fourth Proportional to 25,635.60, 38,430.61 and 13,795.74

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Solution

The fourth proportional to 25,635.60, 38,430.61 and 13,795.74 is: 20,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,635.60 : 38,430.61 = 13,795.74 : x
  2. Step 2: Convert to fraction form
    25,635.60/38,430.61 = 13,795.74/x
  3. Step 3: Cross multiply
    25,635.60x = 38,430.61 × 13,795.74
  4. Step 4: Simplify right side
    25,635.60x = 530,178,669.11
  5. Step 5: Solve for x
    x = 530,178,669.11/25,635.60
  6. Step 6: Final answer
    x = 20,681.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.